###99乘法表
for i in range(1,10):
    for j  in range(1,i+1):
        b = "{}*{}={}".format(j , i , i*j)
        print(b,end='\t')
    print()


#登陆测试
na = 12
pa = 23
for i  in range(3):
    aa = input(">>>>:")
    pp = input(">>>:")
    if aa == na and  pa == pp:
        print('ok')
        break
    else:
        print('error',i+1)

# # 来个错误次数提示？